body {
    background: linear-gradient(to right, #4facfe, #00f2fe);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}
.register-container {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    padding: 2rem;
    width: 100%;
    max-width: 600px;
}
.btn-primary {
    background: #4facfe;
    transition: background 0.3s ease;
}
.btn-primary:hover {
    background: #00f2fe;
}
